The Health and Human Services Department of the federal government has studied the Head Start program, upon which some $180 billion has been spent. According to a
HotAir article by Mary Katherine Ham, Head Start was found by HHS not to be effective. Head Start kids, compared to non-Head Start kids from similar backgrounds, showed no improvement.
I particularly like this quote from a
report by
The Heritage Foundation:
Access to Head Start for each group had no statistically measurable effects on all measures of cognitive ability, including numerous measures of reading, language, and math ability.